The injury is expected to sideline him for at least a week, which means he will miss the four-game road trip, which begins Tuesday at Atlanta (6 p.m., Fox Sports-Tennessee).

The Predators also are without Shea Weber, who sustained an upper body injury Friday at Detroit and missed the game against Vancouver. Weber is going to travel with the team, but is unlikely to play against the Thrashers.

In response to Grebeshkov’s injury, Alexander Sulzer was recalled from Milwaukee on Monday.

“We have six (defensemen),” coach Barry Trotz said. “That means everybody is going to have to step in. Everybody is going to have to bring their ‘A’ game as a group, and that means forward, (defensemen) and goaltenders.”

This is the seventh recall of the season for Sulzer, whose latest stint with Milwaukee lasted three games. He had three points (one goal, two assists) in those contests before he rejoined the team Monday morning.

He was sent down along with another defenseman, Cody Franson, following Wednesday’s NHL trade deadline. Franson was recalled Saturday in response to Weber’s injury.

Grebeshkov, who has one goal and one assist in four games with Nashville, was acquired from Edmonton on March 1, and Dan Hamhuis, the subject of wide interest around the league, was not traded. That allowed the Predators to send Franson and Sulzer back to the minors … albeit briefly.